From 7d060117fa0d5cab7cb15b0cf127533bea9ffbc7 Mon Sep 17 00:00:00 2001
From: proller <proller@github.com>
Date: Mon, 3 Oct 2016 19:40:07 +0300
Subject: [PATCH] broken db: fix assertion in leveldb::InternalKey::Encode,
 mark base as corrupt

---
 db/dbformat.h      | 6 +++++-
 db/version_edit.cc | 3 +--
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/db/dbformat.h b/db/dbformat.h
index ea897b1..415dc96 100644
--- a/db/dbformat.h
+++ b/db/dbformat.h
@@ -150,7 +150,11 @@ class InternalKey {
     AppendInternalKey(&rep_, ParsedInternalKey(user_key, s, t));
   }
 
-  void DecodeFrom(const Slice& s) { rep_.assign(s.data(), s.size()); }
+  bool DecodeFrom(const Slice& s) {
+    rep_.assign(s.data(), s.size());
+    return !rep_.empty();
+  }
+
   Slice Encode() const {
     assert(!rep_.empty());
     return rep_;
diff --git a/db/version_edit.cc b/db/version_edit.cc
index f10a2d5..1eea2d1 100644
--- a/db/version_edit.cc
+++ b/db/version_edit.cc
@@ -88,8 +88,7 @@ void VersionEdit::EncodeTo(std::string* dst) const {
 static bool GetInternalKey(Slice* input, InternalKey* dst) {
   Slice str;
   if (GetLengthPrefixedSlice(input, &str)) {
-    dst->DecodeFrom(str);
-    return true;
+    return dst->DecodeFrom(str);
   } else {
     return false;
   }